diff -urN tmp/usr/share/python-support/timekpr/timekpr.py /usr/share/python-support/timekpr/timekpr.py
--- tmp/usr/share/python-support/timekpr/timekpr.py	2009-11-09 21:02:09.000000000 +0100
+++ /usr/share/python-support/timekpr/timekpr.py	2012-05-12 00:23:42.249734001 +0200
@@ -121,7 +121,7 @@
     return False
 
 def getusers():
-    u = getcmdoutput('users')
+    u = getcmdoutput('ps -e -o ruser')
     u = u.split()
     u = set(u)
     return list(u)
@@ -204,7 +204,7 @@
     for username in getusers():
         conffile = VAR['TIMEKPRDIR'] + '/' + username
         # Check if user configfile exists and if user was not already notified
-        if not isnotified(username):
+        if isfile(conffile) and not isnotified(username):
             logkpr('configuration file for %s exists' % username)
             # Read lists: from, to and limit
             limits, bfrom, bto = readusersettings(username, conffile)